1 files changed, 48 insertions, 0 deletions
diff --git a/src/base/io/Resource.cpp b/src/base/io/Resource.cpp
new file mode 100644
index 00000000..d369b5f5
--- /dev/null
+++ b/src/base/io/Resource.cpp
@@ -0,0 +1,48 @@
+#include "cru/base/io/Resource.h"
+#include "cru/base/Exception.h"
+#include "cru/base/log/Logger.h"
+
+#if defined(CRU_PLATFORM_OSX)
+#include <CoreFoundation/CoreFoundation.h>
+#elif defined(CRU_PLATFORM_WINDOWS)
+#include <Windows.h>
+#endif
+
+#include <filesystem>
+
+namespace cru::io {
+std::filesystem::path GetResourceDir() {
+  constexpr auto kLogTag = u"GetResourceDir";
+
+#if defined(CRU_PLATFORM_OSX)
+  CFBundleRef main_bundle = CFBundleGetMainBundle();
+  CFURLRef bundle_url = CFBundleCopyBundleURL(main_bundle);
+  CFStringRef cf_string_ref =
+      CFURLCopyFileSystemPath(bundle_url, kCFURLPOSIXPathStyle);
+  std::filesystem::path bundle_path(
+      CFStringGetCStringPtr(cf_string_ref, kCFStringEncodingUTF8));
+
+  CFRelease(bundle_url);
+  CFRelease(cf_string_ref);
+
+  return bundle_path / "Contents/Resources";
+#elif defined(CRU_PLATFORM_WINDOWS)
+  wchar_t buffer[MAX_PATH];
+  DWORD size = ::GetModuleFileNameW(nullptr, buffer, MAX_PATH);
+  std::filesystem::path module_path(buffer, buffer + size);
+  auto p = module_path;
+  while (p.has_parent_path()) {
+    p = p.parent_path();
+    auto resource_dir_path = p / "assets";
+    if (std::filesystem::exists(resource_dir_path) &&
+        std::filesystem::is_directory(resource_dir_path)) {
+      return resource_dir_path;
+    }
+  }
+
+  throw Exception(u"Failed to find resource directory.");
+#else
+  throw Exception(u"Not implemented.");
+#endif
+}
+}  // namespace cru::io